package num1;

public class Test1 {
	public static void main(String[]args){
	int num1=10;
	int num2=20;
	System.out.println("num1:"+num1);
	System.out.println("num2:"+num2);
	System.out.println("****************************");
	int temp;
	temp=num1;
	num1=num2;
	num2=temp;
	System.out.println("num1:"+num1);
	System.out.println("num2:"+num2);
	}
}
